%0 Journal Article %A K.-H. Neeb %T On a Theorem of S. Banach %J Journal of Lie theory %D 1997 %P 293-3 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_1997_7_2_a10/ %F JLT_1997_7_2_a10